High Density Excitonic State in Two-Dimensional Multiquantum Wells.

Abstract

A sharp photoluminescence spectral feature has been observed in AlGaAs.GaAs multi-quantum-well structures under high intensity, resonant excitation at the ground state exciton. This feature, which appears below the exciton ground state, emerges from a cold dense system of excitons, but prior to the break-up of excitons into an electron-hole plasma. A collective excitonic state is speculated.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1984
Accession Number
ADA157140

Entities

People

  • A. R. Calawa
  • B. A. Vojak
  • B. Lax
  • H. Q. Le

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption
  • Absorption Spectra
  • Dye Lasers
  • Electron Holes
  • Excitation
  • Excitons
  • Ground State
  • High Density
  • Intensity
  • Liquid Dye Lasers
  • Luminescence
  • Quantum Numbers
  • Resonance
  • Spectra
  • Spectroscopy
  • Spin Quantum Numbers
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Materials Science and Engineering.
  • Pulsed Power and Plasma Physics.
  • Semiconductor Device Technology

Technology Areas

  • Microelectronics
  • Quantum Computing